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authorIngo Molnar <mingo@elte.hu>2008-01-30 13:33:43 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:43 +0100
commitf0646e43acb18f0e00b00085dc88bc3f403e7930 (patch)
treec47968a44ac541854929f03d22cf2fb76d76cb55 /arch/x86/xen
parentx86: add pte accessors for the global bit (diff)
downloadlinux-f0646e43acb18f0e00b00085dc88bc3f403e7930.tar.xz
linux-f0646e43acb18f0e00b00085dc88bc3f403e7930.zip
x86: return the page table level in lookup_address()
based on this patch from Andi Kleen: | Subject: CPA: Return the page table level in lookup_address() | From: Andi Kleen <ak@suse.de> | | Needed for the next change. | | And change all the callers. and ported it to x86.git. Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/xen')
-rw-r--r--arch/x86/xen/mmu.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index e6184735545f..45aa771e73a9 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -58,7 +58,8 @@
xmaddr_t arbitrary_virt_to_machine(unsigned long address)
{
- pte_t *pte = lookup_address(address);
+ int level;
+ pte_t *pte = lookup_address(address, &level);
unsigned offset = address & PAGE_MASK;
BUG_ON(pte == NULL);
@@ -70,8 +71,9 @@ void make_lowmem_page_readonly(void *vaddr)
{
pte_t *pte, ptev;
unsigned long address = (unsigned long)vaddr;
+ int level;
- pte = lookup_address(address);
+ pte = lookup_address(address, &level);
BUG_ON(pte == NULL);
ptev = pte_wrprotect(*pte);
@@ -84,8 +86,9 @@ void make_lowmem_page_readwrite(void *vaddr)
{
pte_t *pte, ptev;
unsigned long address = (unsigned long)vaddr;
+ int level;
- pte = lookup_address(address);
+ pte = lookup_address(address, &level);
BUG_ON(pte == NULL);
ptev = pte_mkwrite(*pte);